{
  inputs = {
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-26.05";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs-unstable,
      nixpkgs-stable,
      flake-utils,
      ...
    }@_inputs:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        upkgs = import nixpkgs-unstable {
          inherit system;
        };

        _spkgs = import nixpkgs-stable {
          inherit system;
        };

        pkgs = upkgs;
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs =
            let
              lang = with pkgs; [
                go
                gopls
                delve
                golangci-lint
              ];
              tools = with pkgs; [
                go-task
              ];
            in
            lang ++ tools;
        };
      }
    );
}